Question: What job did Bernard Bolzano have on 1805-4-7?
Paraphrase: Where did Bernard Bolzano work on 1805-4-7?
SPARQL (Wikidata): SELECT ?obj WHERE { wd:Q184735 p:P106 ?s . ?s ps:P106 ?obj . ?s pq:P580 ?x filter(contains(YEAR(?x),'1805')) }